Question

What is added to the blood during haemodialysis to prevent blood clotting?

• A. Haemoglobin
• B. Haemocyanin
• C. Heparin
• D. Thrombin

Answer 1

The Correct Option is C

When kidneys are completely damaged, haemodialysis is done . It is a process of diffusion across a semipermeable membrane to remove unwanted substances from blood, while adding desirable components. Heparin, a glycosaminoglycan is added. to prevent blood coagulation, during the yrocess.

Answer 2

Ans: An anticoagulant prevents the formation of clots or the growth of already existing clots. During hemodialysis, the anticoagulant will prevent the coagulation within the machine and also the artificial kidney. It will ensure the smooth flowing of the blood during the process of dialysis, thus an effective removal of the waste product can be achieved. During hemodialysis, the most common anticoagulant used is heparin. It is a natural anticoagulant that prevents the formation of blood clots. The conversion of prothrombin into thrombin is inhibited by heparin. The formation of fibrin is thus prevented, it is the basis of formation of blood clot. The heparin is injected directly into the bloodstream during the process. 

• Before the process of hemodialysis, heparin solution is prepared in liquid concentration. 
• The heparin will be introduced into the bloodstream through a port or connector, allowing the heparin to mix with the blood as it circulates. 
• When the patient's blood comes in the dialyzer, it will come in contact with the heparin, and it will start working. 
• The blood is monitored to check the status of coagulation during the entire process.